Flash-lamp.



H. L. EVERETT.

FLASH LAMP.

APPLICATION FILED MAY 4, 1916.

Eatanted Jan. 2, 1917.

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i. a 1 pla 5 ends, of 5 "spring terminal separably engaging the cyterminal 14 through the push button to the metal box structure 1 and thence to. the threaded lamp socket shell 4. From this the circuit is completed to the threaded base of the lamp, through the lamp filament to its center terminal and thence to the screw 10, the cap 9 and to the second battery terminal 13. Obviously the lamp 6 is thereby lighted and it remains in circuit as long as the push button 15 is maintained in enout danger of injury from the broken glass,

since regardless of the condition of its outer part, the threaded base may be easily engaged by'the fingers so as to be. quickly unscrewed from within the box.

A flash lamp constructed as above described is particularly useful for illuminating the needle of a talking machine as it will stand at one side of a record and by pressure on its push button may be caused to deliver its light in a manner best calculated to facilitate the proper placing of said needle on the record.

I claim 1. The combination in a flash lamp of a box; a threaded shell therein for the reception of a lamp; a sleeve removably mounted on said shell within the box but insulated from said shell; a battery cell having a lindrical surface of said sleeve; a lamp in said shell; and a switch for controlling the flow of current to the lamp.

2. The combination in a flash lamp of a box having an opening; a threaded shell mounted in the box in line with said opening; a lamp outside said box threaded through said opening into said shell; a body of metal having a substantially cylindrical surface and including a part engaged by the center terminalbf the lamp and removably mounted on'the shell also within the box; a

' battery in the box placed to have one of its terminals engage the cylindrical surface of the'body of metal on the shell; and a switch for engagement with'the other terminal of the cell.

I 3. The combination in a flash lamp of a metal box having a threaded metal socket shell mounted within and electrically connected to it; a lamp threaded into said shell; a metal sleeve having an insulating lining and removably threaded on the shell in electrical connection with thecenter terminal of the lamp; a battery mounted in the box with one of its terminals in engagement with said shell; and a switch mounted to electrically connect the other cell terminal with the metal of the box. I i 4. The combination in a flash lamp of a metal box; a threaded socket shell mounted thereon; a lamp threaded into said shell and projecting beyond the same within the box; a metal sleeve having a threaded lining whereby it is removably mounted on but insulated from said first sleeve and electrically connected to the center lamp terminal; a battery in the box having one terminal removably engaging the metal sleeve; and a switch for controlling the fiow of current to the lamp.

5. The combination in a flash lamp of a :metal box a threaded socket shell mounted in said b'ox adjacent one end thereof; a body of metal removably mounted on the outside threaded portion of said socket she'll but insulated therefrom; a lamp screwed into'the shell with its center terminal in electrical connection with said body of metal; a relatively flat battery mounted in the box in a planesubstantially at right angles to the line of the socket shell with one of its terminals in electrical contact with the body of metal on the shell; and a switch mounted to coact with the second battery terminal for controlling the flow of current to the lamp.

6. The combination in a flash lamp of a metal box having four flat sides and formed with an opening in one face; a push button mounted in one side of said box; a threaded socket shell in the box in line with said face opening; a metal cap mounted on but insu lated from said shell and electrically connected to the center terminal of the lamp; with 'a battery mounted in the box with one of its terminals electrically engaging the metal cap and its other terminal in position to be engaged by the push button.

, HENRY L. EVERETT. 

